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At a Comic-Con panel Thursday, Under the Dome star Mike Vogel teased the possibility of some of the characters leaving the impenetrable dome that encompasses the town of Chester’s Mill, Maine, on the TV drama.

“A lot of people said, ‘How do you maintain a show under a dome year after year?'” he said. “They’ve come up with a really exciting and interesting way of broadening the scope of our world. I think everyone’s in for a real treat once that happens.”